CVE-2026-112904 givanz CVE debrief

Who should care

Defenders responsible for Vvveb installations, particularly those with administrator access, should assess exposure and apply the patch to prevent unauthorized file access and modification.

Why it matters

CVE-2026-112904 is a high-severity vulnerability in Vvveb that allows an authenticated administrator to read arbitrary files and write SQL dump content to arbitrary locations. Defenders should prioritize verifying exposure and applying the patch to prevent unauthorized file access and modification.

• Verify patch application to prevent unauthorized file access
• Restrict access to backup controller functions to prevent exploitation
• Monitor for suspicious file access and modification attempts to detect potential exploitation

Technical summary

The nextRestore() and nextBackup() functions in the Vvveb backup controller are vulnerable to path traversal, allowing an authenticated administrator to read arbitrary files and write SQL dump content to arbitrary locations. This issue is patched in commit aa29cb0. The vulnerability affects versions 1.0.8.6 and prior of the Vvveb CMS. Defenders should prioritize verifying exposure and applying the patch to prevent unauthorized file access and modification. The patch application should be verified to ensure the vulnerability is remediated.

Defensive priority

Defenders should prioritize verifying exposure and applying the patch, as the vulnerability allows for unauthorized file access and modification.

Recommended defensive actions

• Verify Vvveb version and apply patch if necessary
• Restrict access to backup controller functions
• Monitor for suspicious file access and modification attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, affected versions, and patch information. However, additional information on exploitation or victim impact is not available. Defenders should verify the patch application to prevent unauthorized file access and modification. The patch was applied via commit aa29cb0. Evidence is limited to CVE and source item data.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.